Corrosionrate prediction model using Box-Cox transformation of friction stir processed Al-Si alloy
Samir Mahmoud, T., Hamza Mansour, E., Mohamed Afify,, R., Mohamed Hasona, K. (2020). Corrosionrate prediction model using Box-Cox transformation of friction stir processed Al-Si alloy. EKB Journal Management System, 43(1), 1-6. doi: 10.21608/erjsh.2020.242100
Tamer Samir Mahmoud; Elsayed Hamza Mansour; Rasha Mohamed Afify,; KhadigaMuftah Mohamed Hasona. "Corrosionrate prediction model using Box-Cox transformation of friction stir processed Al-Si alloy". EKB Journal Management System, 43, 1, 2020, 1-6. doi: 10.21608/erjsh.2020.242100
Samir Mahmoud, T., Hamza Mansour, E., Mohamed Afify,, R., Mohamed Hasona, K. (2020). 'Corrosionrate prediction model using Box-Cox transformation of friction stir processed Al-Si alloy', EKB Journal Management System, 43(1), pp. 1-6. doi: 10.21608/erjsh.2020.242100
Samir Mahmoud, T., Hamza Mansour, E., Mohamed Afify,, R., Mohamed Hasona, K. Corrosionrate prediction model using Box-Cox transformation of friction stir processed Al-Si alloy. EKB Journal Management System, 2020; 43(1): 1-6. doi: 10.21608/erjsh.2020.242100

Corrosionrate prediction model using Box-Cox transformation of friction stir processed Al-Si alloy

Engineering Research Journal (Shoubra)
Volume 43, Issue 1, January 2020, Page 1-6  XML PDF (402.64 K)
Document Type: Research articles
DOI: 10.21608/erjsh.2020.242100
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Authors
Tamer Samir Mahmoud1; Elsayed Hamza Mansour2; Rasha Mohamed Afify,1; KhadigaMuftah Mohamed Hasona1
1Mechanical Engineering Department , Shoubra Faculty of Engineering ,Benha University ,Cairo ,Egypt.
2Mechanical Engineering Department , Shoubra Faculty of Engineering ,Benha University ,Cairo ,Egypt
Abstract
In the present work ,the impact of friction stir processing (FSP) process parameters such as traverse feed rate, rotational speed and the type of pin profile tool (form and threaded cylindrical pin profiled tool geometry) on the pitting corrosion rate of A356 cast aluminum alloy was statistically investigated .Potentio dynamic polarization testing was conducted to determine the corrosion properties of the base alloy and the FSPed samples. It is found that, the most important parameter impacting pitting corrosion rate is the rotational speed, while the pin profile tool geometry has a second ranking parameter. The traverse feed rate has no statistical significant impact on corrosion rate .In addition to, the form tool pin profile produces a better pitting corrosion resistance of the stir zones compared to the threaded cylindrical pin profiled tool.Regression model was firstly used to develop the corrosion rate of FS processed A356 cast Al alloy .Then ,the plotting of residuals versus fitted values indicated a non-constant variance of this initial model, Box-Cox transformation was used to improve regression prediction model to the data and eliminate these drawbacks
Keywords
Friction stir processing; Aluminium cast alloys; Corrosion; Box-cox transformation; ANOVA. 1. INTRODUCTION Friction stir
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